Patent EA-002583-B1 (EA)
Title: System for supplying an inhalable aerosol
Inventor: WILDENAU WOLFGANG
IPC: A24F42/60
Filed: 1999-11-08
Abstract: 1. A system for supplying an inhalable aerosol comprising  - an inhaling device (10) which has a rod-shaped housing (12) with a rear, mouth-end area (16) and a front area (14), a substrate holder (26), which can be heated by a heating device (30,38,44,50), is situated in the front area (14) of the housing (12) and is accessible via a loading opening (24) that is preferably located at the end of the housing (12), a flow channel (34) leads from the substrate holder (26) to the rear end of the housing (12), the heating device (30,38,44,50) is configured for generating heat by thermal or catalytic combustion, a fuel tank (38) is arranged in the rear portion (16) of the inhaling device (10) housing (12), said fuel tank is designed to be filled preferably from outside, the inhaling device (10) comprises a switching device (48) interacting with an ignition device (50) for fuel ignition and preferably operated piezoelectrically and with a valve means (42) for discharging the fuel from the tank. - a substrate portion (1) that is configured for introducing into the substrate holder (26) through the loading opening contains aerosol-forming material (2) inside a casing (3) which has an air inlet (4) and an aerosol outlet (5), characterized in that the switching means (48) comprises a ring (48) able to axial displacement along the front area (14) of the inhaling device (10) housing (12), said ring having preferably a low heat conductivity and preferably secured in two positions. 2. The system according to claim 1, characterized in that a flow channel (34) of the inhaling device (10) is adapted for introducing a filter. 3. The system according to claim 2, characterized in that the filter made in the form of a filtering holder is adapted to be introduced in its rear, mouth-end area (16) of the inhaling device (10) housing (12) into the flow channel (34). 4. The system according to claim 1 or 2, characterized in that the inhaling device (10) comprises a holder (18) in the rear end of the housing connected to flow channel (34) and preferably having low heat conductivity. 5. The system according to any of claims 1 to 4, characterized in that a substrate holder (26) of the inhaling device (10) comprises at least one heating surface (30), preferably hollow cylindrical or grooved. 6. The system according to any of claims 1 to 5, characterized in that the substrate holder (26) of the inhaling device (10) comprises two parallel heating surfaces (30) the distance between them can be preferably changed. 7. The system according to claim 1 or 2, characterized in that the substrate holder (26) of the inhaling device (10) comprises a jacket within the heating surfaces (30) having a good conductivity and preferably provided with holes designed for fitting a substrate portion (1) into the substrate holder (26). 8. The system according to any of claims 5 to 7, characterized in that the substrate holder (26) of the inhaling device (10) comprises a rear cavity (32) behind the heating surfaces (30) into which a rear part of the substrate portion can be introduced. 9. The system according to any of claims 5 to 8, characterized in that the heating devices (30) of the inhaling device (10) are configured for generating heat by thermal or catalytic combustion of gaseous and/or liquid fuel. 10. The system according to any of claims 1 to 9, characterized in that an aerosol-forming material comprises one or a plurality of components selected from the group: n-alkane having 1 to 4 carbon atoms, n-alkane having 5 to 20 carbon atoms, branched or ring-shaped alkane having 5 to 20 carbon atoms, alcohols, ketones, esters, aldehydes. 11. The system according to any of claims 1 to 10, characterized in that the front area (14) of the inhaling device (10) housing (12) comprises an air inlet (36). 12. The system according to any of claims 1 to 11, characterized in that the housing (12) of the inhaling device (10) comprises a window with a luminous component when the heating device (30,38,44,50) is operated. 13. The system according to any of claims 1 to 12, characterized in that the housing (12) of the inhaling device (10) is a one piece detail. 14. The system according to any of claims 1 to 13, characterized in that the housing (12) of the inhaling device (10) is compound made preferably of two parts and comprises a split connection (20). 15. The system according to any of claims 1 to 14, characterized in that the housing (12) of the inhaling device (10) is made of one or a plurality of materials selected from the group: thermo-setting resins, multi-component resins, finewood, wood of hard trees, root wood, metal. 16. The system according to any of claims 1 to 15, characterized in that the substrate portion is cylindrical 10-100 mm long, preferably 15-60 mm, and diameter 4-12 mm, preferably 5-8 mm, wrapping (3) is cylindrical and its ends serve as the air inlet (4) and the aerosol outlet (5). 17. The system according to any of claims 1 to 16, characterized in that the wrapping (3) of the substrate portion (1) comprises low-porous or almost water-proof cigarette paper, preferably with a high content of mineral additives. 18. The system according to any of claims 1 to 17, characterized in that the wrapping (3) of the substrate portion (1) comprises a metal foil, preferably aluminum foil. 19. The system according to any of claims 1 to 18, characterized in that the substrate portion (1) comprises an isolating casing, preferably protruding over the front end of the wrapping (3). 20. The system according to any of claims 1 to 19, characterized in that the aerosol-forming material (2) of the substrate portion (1) comprises a material-carrier, preferably aluminum oxide, silica gel, activated charcoal, cellulose fibers, lignite granulate, zeolites, aluminas or sepiolite or a combination thereof, and also one or several polyols, preferably glycerin and/or propylenglycol, and preferably additional binders, gel-forming agents, additives, aromatizers and/or nicotine, the polyol content is from 1- to 60% by weight. 21. The system according to any of claims 1 to 19, characterized in that the aerosol-forming material (2) of the substrate portion (1) comprises a tobacco material, preferably chipped tobacco, chipped leaf tobacco and/or chipped tobacco stems, and one or several polyols, preferably glycerin and/or propylenglycol, preferably thickened with tobacco dust, and preferably additional binders, gel-forming agents, additives, aromatizers and/or nicotine, the polyol content is from 1- to 40% by weight. 22. The system according to any of claims 1 to 19, characterized in that the substrate portion (1) is a thin, standard cigarette without a filter, comprising polyols from 5 to 10% by weight. 23. An inhaling device, comprising a rod-shaped housing (12) with a rear, mouth-end area (16) and a front area (14) of the housing, a substrate holder (26), which can be heated by a heating device (30, 38, 44, 50) is situated in the front area (14) of the housing (12) and is accessible via a loading opening (24) that is preferably located at the front end (23) of the housing (12), a ), a flow channel (34) leads from the substrate holder (26) to the rear end of the housing (12), the heating device (30, 38, 44, 50) is configured for generating heat by thermal or catalytic combustion, a fuel tank (38) is positioned in the rear, mouth-end area (16) and a front area (14) of the inhaling device housing (12), the container is preferably filled from outside, the inhaling device (10) comprises a switching device (48) interacting with an ignition device (50) for combusting the fuel and preferably operated piezoelectrically and configured for injecting the fuel from the container (38) via a valve means (42), characterized in that the switching device (48) comprises a ring (48) able to displace axially along the front area (14)of the housing (12), the ring is preferably fixed in two positions and having low conductivity. 24. The inhaling device according to claim 23, characterized in that it has features of the inhaling device (10) according to one of claims 2 to 15. 25. A substrate portion is configured for introducing into the substrate holder (26) the substrate according to claim 23 or 24 through the loading opening (24) and comprising an aerosol-forming material (2) inside the wrapping (3) which has an air inlet (4) and an aerosol outlet (5). 26. The substrate portion according to claim 25, characterized in that it has features of the substrate (1) according to one of claims 16 to 22.